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Introduction to Basic Vibrations starts with the fundamental principle of vibrations with a single and double degree of freedom systems. These fundamental vibration systems provide a solid platform not only to understand general vibrations but also to apply or use them into simple mechanical problems.
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    腦袋裡常裝著許多立體物件的形貌,想分享出來,可是不知道怎麼表達?怎麼將心中那個立體的形象,「繪製」出來呢?3D建模技術,幫助我們建構最直觀可以理解的立體模型,跳過利用平面圖解讀三維物體的過程,最能直接有效地表達我們的想法。 我們設計了許多範例,讓大家可以快速地理解3D CAD軟體 Sketchup 的使用邏輯,與繪製技巧,從入門到進階,介紹SketchUp 各項3D建模技術。完成『工程圖學3D CAD』後,把天馬行空的想法,以3D建模技術繪製出來,不再是難事! 本課程目標是建構三維模型,電腦實作為主要講授教材,以豐富有趣的範例與完整的繪製過程,步驟化地引導如何使用Sketchup這套3D建模軟體的技術。完成『工程圖學3D CAD』,你將有能力將存在於想像裡的立體物件,透過3D建模,實現出來!
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      Do you want to know how robots work? Are you interested in robotics as a career? Are you willing to invest the effort to learn fundamental mathematical modeling techniques that are used in all subfields of robotics? If so, then the "Modern Robotics: Mechanics, Planning, and Control" specialization may be for you. This specialization, consisting of six short courses, is serious preparation for serious students who hope to work in the field of robotics or to undertake advanced study. It is not a sampler. In Course 1 of the specialization, Foundations of Robot Motion, you will learn fundamental material regarding robot configurations, for both serial robot mechanisms and robots with closed chains. You will learn about configuration space (C-space), degrees of freedom, C-space topology, implicit and explicit representations of configurations, and holonomic and nonholonomic constraints. You will also learn how to represent spatial velocities and forces as twists and wrenches. This material is at the core of the study of anything that moves (e.g., robots). This course follows the textbook "Modern Robotics: Mechanics, Planning, and Control" (Lynch and Park, Cambridge University Press 2017). You can purchase the book or use the free preprint pdf. You will build on a library of robotics software in the language of your choice (among Python, Mathematica, and MATLAB) and use the free cross-platform robot simulator V-REP, which allows you to work with state-of-the-art robots in the comfort of your own home and with zero financial investment.
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        This course provides an overview of the most important digital applications in the field of aerospace research. The course instructors discuss how digitalisation is impacting and changing both satellite-based and manned spaceflight research. One unit is specifically devoted to exploring the use of artificial intelligence in the evaluation of satellite data.
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          This course is perfect for people who want to learn more about the plastic injection process and injection molds and expand their knowledge in an industry in high demand. This course is also essential for those people who have been in the sector for a long time and want to consolidate concepts, discover the why of things or simply remember concepts and see the latest trends in the sector. "Remember that everything in nature when it stagnates begins a decline" Index: Chapter 0: Introduction Chapter 1: Injection Molding Process Introduction Injection  cycle stages Pvt Diagrams Influence of injection parameters Calculation in injection process Deffects in injection molding Chapter 2: Scientific Molding Rheology curve Cavities balance Drop pressure Seal gate process window Chapter 3: Types of injection molds Introduction clasficaction by feeding system Clasification by number of plates in cavity/cores Clasification by number of cavities Special tools Chapter 4: Ejection system Introduction Ejection system componts Ejectors (pin ejector, sleeve ejector, blade ejectors) Undercuts( slider, lifter and hydraulic movements) Design of slider (components, calculations and recomendations) Design of lifters (components, calculations and recomendations) Design of Hydraulics (components, calculations and recomendations) Double ejection systems Cavity ejection system How is acted the ejection system Chapter 5: Cooling system Introduction Calculations: cooling time Calculations: heat transfer, coolant flow and diameter of channels Calculations: cooling channel depth and pitch Cooling channel lay-outs Components in cooling channel Temperatur control unit (TCU) Chapter 6: Injection system Introduction Types of injection system Hot runners Lay-out for moldings Calculations: runner diameters. Chapter 7: Gates Introduction types of gates Calculate shear rate Standard gates and runner shu-off Chapter 8: Venting Introduction Deffects and locations for venting Venting design Chapter 9: Graining Introduction Chemical and laser graining
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            There are opportunities throughout the design process of any product to make significant changes, and ultimately impact the future of manufacturing, by embracing the digital thread. In this course, you will dig into the transformation taking place in how products are designed and manufactured throughout the world. It is the second of two courses that focuses on the "digital thread" – the stream that starts at the creation of a product concept and continues to accumulate information and data throughout the product life cycle. Hear about the realities of implementing the digital thread, directly from someone responsible for making it happen at a company. Learn how the digital thread can fit into product development processes in an office, on a shop floor, and even across an enterprise. Be prepared to talk about the benefits, and limitations, of enacting it. Main concepts of this course will be delivered through lectures, readings, discussions and various videos. This is the third course in the Digital Manufacturing & Design Technology specialization that explores the many facets of manufacturing’s “Fourth Revolution,” aka Industry 4.0, and features a culminating project involving creation of a roadmap to achieve a self-established DMD-related professional goal. To learn more about the Digital Manufacturing and Design Technology specialization, please watch the overview video by copying and pasting the following link into your web browser: https://youtu.be/wETK1O9c-CA
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              Prove to potential employers that you’re up to the task by becoming an Autodesk Certified Professional. This online course from Autodesk prepares you by offering an overview of skills that match what is covered in the Autodesk Certified Professional: AutoCAD for Design and Drafting exam. The video lessons are structured to match the exam’s objective domains and follow the typical workflow and features of the AutoCAD software, including sections on drawing and organizing objects, drawing with accuracy, advanced editing functions, layouts, printing, and outputs, annotation techniques, and reusable content and drawing management. In the course, you will create drawing objects, manage layers, apply object snaps, and work with the User Coordinate System. You’ll edit objects and apply rotation and scale, array techniques, grip editing, offsets, fillet and chamfer, and trim and extend. You will also gain an understanding of exam topics such as layouts and viewports, output formats, and drawing management. Brush up on markup tools, hatch and fill, text, tables, multileaders, dimensioning, and much more. About the Autodesk Certified Professional: AutoCAD for Design and Drafting Exam: The Autodesk Certified Professional: AutoCAD for Design and Drafting exam is the recognized standard for measuring your skills and knowledge in AutoCAD. Certification at this level demonstrates a comprehensive skill set that provides an opportunity for individuals to stand out in a competitive professional environment. This type of experience typically comes from having worked with the software on a regular basis for at least 2 years, equivalent to approximately 400 hours (minimum) - 1200 hours (recommended), of real-world Autodesk software experience. Ready to take the exam? Schedule to take the exam online or find a testing center near you on pearsonvue.com/autodesk.
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                This course introduces you to the foundational knowledge in computer-aided design, manufacture, and the practical use of CNC machines. In this course we begin with the basics in Autodesk® Fusion 360™ CAD by learning how to properly sketch and model 3D parts. Before we program any toolpaths, we’ll explore CNC machining basics to ensure we have the ground level foundational knowledge needed to effectively define toolpaths. Finally, we explore the basics of setting up a CAM program and defining toolpaths to cut simple geometry. This is the same basic process that gets repeated for the design and manufacture of any part and is a critical step in learning and understanding the process. Want to take your learning to the next level? Complete the Autodesk CAD/CAM for Manufacturing Specialization, and you’ll unlock an additional Autodesk Credential as further recognition of your success! The Autodesk Credential comes with a digital badge and certificate, which you can add to your resume and share on social media platforms like LinkedIn, Facebook, and Twitter. Sharing your Autodesk Credential can signal to hiring managers that you’ve got the right skills for the job and you’re up on the latest industry trends like generative design. Enroll in the Specialization here: https://www.coursera.org/specializations/autodesk-cad-cam-manufacturing
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                  How can we create agile micro aerial vehicles that are able to operate autonomously in cluttered indoor and outdoor environments? You will gain an introduction to the mechanics of flight and the design of quadrotor flying robots and will be able to develop dynamic models, derive controllers, and synthesize planners for operating in three dimensional environments. You will be exposed to the challenges of using noisy sensors for localization and maneuvering in complex, three-dimensional environments. Finally, you will gain insights through seeing real world examples of the possible applications and challenges for the rapidly-growing drone industry. Mathematical prerequisites: Students taking this course are expected to have some familiarity with linear algebra, single variable calculus, and differential equations. Programming prerequisites: Some experience programming with MATLAB or Octave is recommended (we will use MATLAB in this course.) MATLAB will require the use of a 64-bit computer.
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                    Course 2 of Statistical Thermodynamics presents an introduction to quantum mechanics at a level appropriate for those with mechanical or aerospace engineering backgrounds. Using a postulatory approach that describes the steps to follow, the Schrodinger wave equation is derived and simple solutions obtained that illustrate atomic and molecular structural behavior. More realistic behavior is also explored along with modern quantum chemistry numerical solution methods for solving the wave equation.